Hacker for turpentine trees



Aug. 11, 1931. E. A. McKoY 1,818,906

HACKER FOR TURPENTINE TREES Filed may 16, 1927 gwoentoc Patented Aug. 1i, 1931 1,818,906

UNITED-STATES PATENT oFF1cE- Application led May 16, 1927. Serial No. 191,756.

This invention relates to hackers for tur- Figure 5 is a view partly in edge elevapentine trees and has for an object to protion and partly in section of a modification. vide an implement of the kind having imof the blade holder. proved means for replacing blades therein Figure 6 is a view in side elevation of an 5 in case of wear or breakage. assembly of certain types of the present in- 5'0 A further object of the invention is to vention. provide in a device of the kind, a blade so f Figure 7 is a view in side elevation of the constructed of a substantially uniform thickblade.

ness as to receive a uniform temper throughyFigure ,8 is a view ofthe blade in edge out its extent, thereby eliminating the danelevation. 55 ger of breakage from lack of uniformity in Figure 9 is `a transverse sectional view temper, through the blade and its holder as indicated A further object of the invention is to by line 9-9 of Figure 6. provide in an implement of the kind im- Figure l0 is a sectional view through the .145 proved means whereby the handle may be blade and blade holder as ltaken on linee@ made to correspond to the wishes of the op- 10-10 of Figure 6. v erator as to length without change in con- Figure 11 is a view of a modified type of struction other than merely sawing off parts blade holder to be employed with a handle to the required length. y of the present type of construction and op- A further object of the invention is to eration.

provide a replaceable and interchangeable Figure 12 is atransverse sectional view blade structure which may be employed with similar to Figure 10 showing a modification.` various types of holders for the structure Like characters of reference indicate corand handle, responding partsy throughout the several A further object of the invention is to prov-iews. f 70 vide various types of holders for the inter- The hacker disclosed in the present applichangeable blade structure. cation is in general respects similar and cor- With these and other objects in view, the responds to the hackers already employed invention comprises certain novel parts, elein turpentine culture, an assembly being ments, units, combinations, constructions, shown of present use. 75

interactions and functions as disclosed in the According to the present invention, the drawings together with equivalents thereof handle 20 will be provided with a longitudias will be hereinafter more fully described nal bore 21 through which may be inserted and claimed. the rod 22 of the type shown at Figures 1 In the drawings: and 2 or the threaded extension 23 and bolt 80" Figure 1 is a view in elevation of one type 24 of the type shown at Figure 5. v In either of blade holder, disassociated from the case, the rod or extension is provided with a handle. blade holder or head 25 having a channel Figure 2 is a view of the blade holder in formed therein bound by the shoulders 26 edge elevation. and 27 and provided with a perforation 28. 85

Figure 3 is a perspective view of the han Into this channel so formed by the shoulders dle modified to correspond to the present the blade is inserted, the shank 29 IittingV invention. snugly against the shoulders 26 and 27, the

Figure 4 is a view of the ball or weight perforation 30 registering with the perforaused upon the end of the handle. tion 28 and secured therein by any usual 9@ ztype, the handle 20 may be sawed oit to any i and ordinary means as the bolt 31. The blade is curved at 3:2 to correspond to the present practice in hacker blades and is provided With an offset 33 Which lits against the beveled edge 34 of the holder so that substantially a smooth surface is presented offering no obstruction to the passage of chips loosened by the use of the hacker.

The same el'ect is accomplished by beveling the holder as indicated at 25', Figure l2, and the hacker is provided with no offset, being a straight shank with curved blade 32. v

The end of the rod opposite the head 25 or the bolt 24 is intended to pass through the usual Weight or ball 85', said ballbeing provided vvith a perforation for that purpose. n the type employing the rod and vshov'vn at Figures l and 2, a nut 36` Willbe applied to the threaded portions 37 of the rod holding the ball 35 rigidly against theendz-of the handle 20 as Well as drawing the head 25 into the radial groove 38-in the end` of the handle, preventing the blade from rotating relative to the handle when inruse;

It is obvious that, when the type of holder. is'us'ed as shown-at Figure 5, the boltv head 39 will abut against the outer surface of the Weight; or-ball With the use of' the latter length desired but with the use of the type Shown at Figures l and 2, after the .handle has been savved to the required length it may also be necessary to vsaw oil? the threaded part 87 so that. no'undesirable-length extends beyond the nut 36. i

Also,rit is to be understood, that While in the type shown at. Figure 5 a head 39 is represented, any usual and ordinaryv mechanical equivalent will be Within the sc ope oft this invention as, .for instance, threading the rod Qditsentire length at Vboth ends and applyinga nut thereto instead of a head. This is merelywan ordinary mechanical equivalent` and its illustration 1s not considered neces-` sary. r

So thatthe-replaceable and interchangeableblades may be used With substantially the structure at present in use, a modification is shown at Figurey 'lli having a tang 40 Witha hoolr l-l of substantially the usual and.: ordinary type. ln this case the blade is insertedbetween the shoulders 26 and-27' exactly asin the constructions shown inthe other igur'es, this being-merely a modification to enable the users to employ the replaceable and interchangeable blades Without otherwise changing the general form ofy ture.

EDWIN A. MoKO Y. 

